Specifications: Capacity x readability：440 lb x 0.2 lb Weighing units：lb, kg Platform size: 15.3in*11.8in Power：DC adapter (included) Power：4 "AA" batteries (not included) Having an accurate weight reading of your goods helps keep costs down and lets you know exactly where your money is going. The Surmountway shipping scales are well-built, portable bench scales designed specifically with affordability and utility in mind. Ideal for home office, mailroom, shipping and receiving and general commercial and industrial weighing applications. Grow your business with this Surmountway postal scale. Instantly read weights from small items to large packages. Industrial grade solid cast aluminum weighing platform Easy to read LCD screen with clear backlight Universal table/wall mounting brackets included Sealed keypad protects against dirt and spills Auto shutoff feature saves battery life DC adapter or AA battery(not included) operation